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  #16 (permalink)  
Old 06-24-2008, 06:34 PM
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Originally Posted by Jmark
Actually, with the crank at 12 and cam at 6, it will be TDC on #6. (here we go again! LOL Why Chevy did this, no one knows, but it is....what it is.)

After the gears are on, rotate the crank one turn so crank is 12 and cam is 12.....THEN, it's on TDC #1.
Wow, never knew that. Why do none of the instructional guides I've read refer to that?!


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Old 06-24-2008, 11:15 PM
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I think Chevrolet's original intent was that both marks be at the 12:00 position and verified with a straight-edge, but somebody whose kid hid the ruler just lined up the marks and timed it with #6.
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Old 06-25-2008, 05:50 AM
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The only difference if you line up the marks 12 and 6 are when you put the distributor in you will be 180 off.

Do not reuse the crank gear, remember that it spins twice as fast as the cam. It also has more pressure on the teeth do to surface area. I just press my crank gear on then put one cam bolt in and that will give enogh to get the other bolts in then just tighten it up and it pulls everything in place.
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